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DTMF SIGNAL SENDING
Description
Dual Tone Multi-Frequency (DTMF) signals are used with CO lines assigned for DTMF signaling. The duration of the DTMF signal can be adjusted from 40 to 990 milliseconds.
Operation System Operation of this feature is automatic when programmed.
Conditions
1. The system mutes the user’s voice transmission to reduce interference while sending DTMF
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